Manufacture of gas.



J. M. RUGBY.

NIANUFACTUHE 0F GAS.

APPLICAHON FILED DEC. 1o, 1909.

Lw@ Patented Feb.15,191e.

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TINTTED STATES ATTN T FFTQIE.

JOHN M. EUsEY, OE PHILADELPHIA, PENNSYLVANIA, AssIGNoR To THE UNITED GASIMPROVEMENT COMPANY, OE PHILADELPHIA, PENNSYLVANIA. A CORPORATION OFPENNSYLVANIA.

MANUFACTURE 0F GAS.

To all lw/iom it may conce/rn Be it known that I, JOHN M. RUsBY, acitizen of the United States, residing at the city of Philadelphia, inthe county of Philadelphia and State of Pennsylvania, have inventedcertain new and useful Improvements in the Manufacture of Gas, of whichthe following is a specification.

The principal object of the present invention is to provide simple,reliable and eflicient means for introducing into a gas generator thequantity of air or steam or both, or in other words, gas making fluid orfluid ingredient, required for 4attaining uniform and economicalconditions of operation, for avoiding waste and useless expenditure ofmaterials, and for procuring a uniform and good' quality of gas. To thisend, according to this invention, use is made of va drop in pressure inthe fluid feed pipes due to friction loss'as the means by which thequantity of fluid introduced into the generator is regulated eithermanually or automatically.

Embodiments of the invention chosen for explanation are illustrated inthe accompanying drawings in Which- Figures l and Q, are elevationalviews with parts broken away illustrating theinvention applied to theregulation of air, automatieally in Fig. l, and manually in Fig. 2.

In the drawings 1, is a gas generator and the type of generatorillustrated is that which forms part of a water gas set and to which airand steam are alternately ad- However, the invention is not limited tothis type of generator and is applicable in wholeV or in part to othertypes of gas generators.

Referring to Fig. l, 2 is the air pipe by which the air blast isvsupplied to the generator. This pipe 2, is connected with an air trunkto which air is supplied as by means of the blower 4. In the feed pipe2, there is a drop in pressure due to friction loss and in this, bends,contractions and the like play a part. For example, between the points 5and (l. there is a drop in pressure due largely to friction loss andthis drop is approximately proportional to the quantity of airtraversing the pipe, the greater the quantity the greater the drop, andthe less the quantity the less the drop. 7 is a device respon-Specification of Letters Patent.

Patentedlfeb. 115, i916.

Serial No. 532,310.

sive to differences in pressure and adapted to open and close a valvedamper or the like S, in the feed pipe 2. The device 7, is shown toconsist of a housing 9, containing Ifluid into which dips a movable bell10. The stem 11, of the bell is connected with one arm 12, of a bellcrank lever, the other arm 13, of which is connected by a link 1l, withan arm 15, attached to the spindle of the damper 8. 16, is a pipeconnection communicating with the interior of the bell and with the pipeQ, at say the point 5, and 1T, is a pipe communicating with the interiorof the housing 9, and with a point as which is shown at the interior ofthe generator, but it may be at some point in the pipe '2, nearer to thegenerator than the point 5, as will be described in connection with Fig.2. The parts of the device are adjusted and the section of supply pipein-' eluded between the points 5 and G 1s calibrated, so that in thenormal position of the parts the appropriate er necessary quantity ofair is admitted. The tendency to the admission of more Or less than thisappropriate quantity of air changes the difference in pressure betweenthe points 5 and 6, thus causing the device 7, and its connections toautomatically adjust the damper 8, so as to permit of the'passage of theappropriateor necessary quantity of air.

As shown in Fig. 2, a U-tube 18, containing a suitable fluid in thedepending part thereof has its respective ends connected by a pipe 19,and by a pipe 20,-' with two points 21 and 22, on the air supply pipe 2,between which there is a drop in pressur'e due to friction loss. A scale23, and a manually actuated valve or damper 24, in the air supply pipeare provided. The parts are of course calibrated and by rference to the.scale 23, and to the column of fluid in the U-tube 18, it is possible tomanually manipulate the valve so as to keep the quantity of air supplyconstant and appropriate for the gas making process.

lVhat I claim is:

1. The combination of a gas generator, a fluid feed pipe. and aregulating valve with a meter consisting of a portion of said feed pipeto one side of said valve and of such length that there is a drop ofpressure in it due to friction loss, of two pipes connected with theopposite ends of said portion of said feed pipe and of means responsiveto the differential pressure in the last mentioned pipes, substantiallyvas described.

2; The combination of a gas generating apparatus and its Huid feed pipe,a meter consisting of a portion of said pipe of such length that thereis a drop of pressure in it due to friction loss, a regulating valve toone side of said portion of the fluid feed pipe,

10 means adapted to operatesaid valve, and

two pipes connected with said means and with the ends of said portion ofsaid Huid feed pipe, substantially as described.

In testimony whereof I have hereunto signed my name,

JOHN M. RUSBY. Witnesses:

CLIFFORD K. CAssEL, FRANK E, FRENCH.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents.

Washington, D. C.

